/* =========================================================
   Alexi Trading — site styles
   Modern fintech / AI aesthetic. Dark hero, light content.
   ========================================================= */

:root{
  --ink:        #0A1628;
  --ink-2:      #11203A;
  --ink-3:      #182B49;
  --accent:     #00D4B4;
  --accent-2:   #4A7AFF;
  --bg:         #F7F9FC;
  --surface:    #FFFFFF;
  --surface-2:  #F1F4F9;
  --border:     #E5EAF1;
  --border-strong:#CFD7E3;
  --text:       #0B1220;
  --muted:      #5B6478;
  --muted-light:#8A93A4;
  --gold:       #C9A961;
  --radius:     14px;
  --radius-sm:  10px;
  --shadow-sm:  0 1px 2px rgba(10,22,40,.04);
  --shadow-md:  0 8px 24px rgba(10,22,40,.08);
  --container:  1180px;
  --gradient:   linear-gradient(135deg,#00D4B4 0%,#4A7AFF 100%);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Inter','Helvetica Neue',Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--accent-2)}

h1,h2,h3,h4{margin:0 0 .5em;letter-spacing:-0.6px;line-height:1.15;font-weight:700}
h1{font-size:clamp(36px,5vw,60px);letter-spacing:-1.5px}
h2{font-size:clamp(28px,3.4vw,40px);letter-spacing:-1px}
h3{font-size:20px}
p{margin:0 0 1em}

.container{max-width:var(--container);margin:0 auto;padding:0 28px}
.eyebrow{
  display:inline-block;
  font-size:12px;font-weight:600;letter-spacing:2px;text-transform:uppercase;
  color:var(--accent-2);margin-bottom:14px;
}
.eyebrow.on-dark{color:var(--accent)}
.lede{font-size:18px;color:var(--muted);max-width:62ch}
.lede.on-dark{color:#B8C2D2}

/* ===== NAV ===== */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(10,22,40,.92);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid #182B49;
}
.nav .row{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.nav .brand{display:flex;align-items:center;gap:12px;color:#fff}
.nav .brand-mark{width:34px;height:34px}
.nav .brand-name{font-weight:700;letter-spacing:-.3px;font-size:18px;color:#fff}
.nav .brand-sub{font-size:11px;letter-spacing:3px;text-transform:uppercase;color:#8FA0BA;margin-left:6px}
.nav ul{display:flex;gap:28px;margin:0;padding:0;list-style:none}
.nav a{color:#C7D1E1;font-size:14.5px;font-weight:500}
.nav a:hover,.nav a.active{color:#fff}
.nav .cta{
  background:var(--gradient);color:#0A1628;font-weight:600;
  padding:9px 16px;border-radius:8px;font-size:14px;
}
.nav .cta:hover{filter:brightness(1.05);color:#0A1628}
@media (max-width:760px){
  .nav ul{display:none}
}

/* ===== HERO ===== */
.hero{
  background:
    radial-gradient(1100px 480px at 80% -10%, rgba(74,122,255,.22), transparent 60%),
    radial-gradient(900px 440px at 10% 20%,  rgba(0,212,180,.18), transparent 60%),
    var(--ink);
  color:#fff;
  padding:96px 0 120px;
  position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent, #2A3E63 40%,#2A3E63 60%, transparent);
}
.hero h1{color:#fff;max-width:18ch}
.hero .lede{color:#B8C2D2;font-size:20px;max-width:60ch;margin-top:8px}
.hero-actions{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 22px;border-radius:10px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;transition:transform .15s ease, filter .15s ease;
}
.btn-primary{background:var(--gradient);color:#0A1628}
.btn-primary:hover{filter:brightness(1.06);color:#0A1628;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:#2C3F62;color:#fff}
.btn-ghost:hover{border-color:#4A7AFF;color:#fff}

/* hero data card */
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}
@media (max-width:980px){.hero-grid{grid-template-columns:1fr;gap:36px}}
.glass{
  background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.08);
  border-radius:16px;padding:22px;
  box-shadow:0 20px 60px rgba(0,0,0,.35);
}
.glass h4{color:#E6ECF6;font-size:13px;font-weight:600;letter-spacing:1.4px;text-transform:uppercase;margin:0 0 12px}
.bar-row{display:flex;align-items:center;gap:10px;margin:6px 0}
.bar-row span{flex:0 0 110px;color:#A7B2C5;font-size:12.5px}
.bar{flex:1;height:6px;background:#1B2A47;border-radius:4px;overflow:hidden}
.bar > i{display:block;height:100%;background:var(--gradient);border-radius:4px}
.bar-row b{font-size:12.5px;color:#fff;flex:0 0 56px;text-align:right}

/* ===== SECTIONS ===== */
section{padding:88px 0}
section.tight{padding:64px 0}
section.dark{background:var(--ink);color:#fff}
section.dark h2{color:#fff}
section.dark .lede{color:#B8C2D2}

.section-head{max-width:760px;margin-bottom:40px}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media (max-width:900px){
  .grid-3,.grid-4{grid-template-columns:1fr 1fr}
  .grid-2{grid-template-columns:1fr}
}
@media (max-width:560px){
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
}

.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--border-strong)}
.card .icon{
  width:42px;height:42px;border-radius:10px;
  background:linear-gradient(135deg, rgba(0,212,180,.15), rgba(74,122,255,.15));
  display:flex;align-items:center;justify-content:center;color:var(--accent-2);margin-bottom:16px;
}
.card h3{font-size:18px;margin-bottom:8px}
.card p{color:var(--muted);font-size:15px;margin:0}

/* trust strip */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
@media (max-width:760px){.stats{grid-template-columns:1fr 1fr}}
.stat{padding:28px;border-right:1px solid var(--border)}
.stat:last-child{border-right:0}
@media (max-width:760px){.stat{border-right:0;border-bottom:1px solid var(--border)}}
.stat .num{font-size:30px;font-weight:700;letter-spacing:-.6px}
.stat .lbl{font-size:13px;color:var(--muted);margin-top:4px}

/* asset class chips */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.chip{
  background:#fff;border:1px solid var(--border);border-radius:999px;
  padding:8px 14px;font-size:13.5px;color:var(--text);
}
.chips.on-dark .chip{background:#11203A;border-color:#1F3358;color:#D9E1EE}

/* process step */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}
.step{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;position:relative;
}
.step::before{
  counter-increment:s;content:counter(s,decimal-leading-zero);
  position:absolute;top:18px;right:20px;font-size:12px;font-weight:700;
  letter-spacing:2px;color:var(--muted-light);
}
.step h3{font-size:17px;margin-top:14px}
.step p{color:var(--muted);font-size:14.5px;margin:0}

/* CTA band */
.cta-band{
  background:var(--ink);color:#fff;border-radius:18px;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  border:1px solid #1A2A47;
  background-image:radial-gradient(700px 240px at 90% 0%, rgba(74,122,255,.22), transparent 60%);
}
.cta-band h2{margin:0;color:#fff}
.cta-band p{margin:6px 0 0;color:#B8C2D2;max-width:54ch}

/* dashboard mock */
.dash{
  background:#0E1B33;border:1px solid #1B2C4F;border-radius:14px;
  padding:18px;color:#D9E1EE;
}
.dash-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.dash-head .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(0,212,180,.18)}
.dash-tabs{display:flex;gap:14px;font-size:12.5px;color:#8FA0BA}
.dash-tabs span.on{color:#fff;border-bottom:2px solid var(--accent);padding-bottom:6px}
.dash-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:14px}
@media (max-width:760px){.dash-grid{grid-template-columns:1fr}}
.tile{background:#11203A;border:1px solid #1B2C4F;border-radius:10px;padding:14px}
.tile h5{margin:0 0 8px;font-size:12px;letter-spacing:1.4px;text-transform:uppercase;color:#9FACC4;font-weight:600}
.tile .big{font-size:22px;font-weight:700;color:#fff}
.tile .small{font-size:12px;color:#9FACC4}

/* AI summary card */
.ai-card{
  background:linear-gradient(180deg, rgba(0,212,180,.06), rgba(74,122,255,.04));
  border:1px solid rgba(74,122,255,.25);border-radius:14px;padding:20px;color:#E6ECF6;
}
.ai-card .pill{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(0,212,180,.12);color:#7AE7D2;border:1px solid rgba(0,212,180,.25);
  padding:4px 10px;border-radius:999px;font-size:11.5px;font-weight:600;letter-spacing:1px;text-transform:uppercase;
  margin-bottom:10px;
}
.ai-card p{color:#C7D1E1;margin:0}

/* form */
form .field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
form label{font-size:13.5px;font-weight:600;color:var(--text)}
form input, form select, form textarea{
  width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--border);
  font-family:inherit;font-size:15px;background:#fff;color:var(--text);
  transition:border-color .15s ease, box-shadow .15s ease;
}
form input:focus, form select:focus, form textarea:focus{
  outline:none;border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(74,122,255,.12);
}
form textarea{min-height:130px;resize:vertical}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:600px){.form-grid{grid-template-columns:1fr}}

/* footer */
footer.site{
  background:#06101F;color:#9FACC4;padding:48px 0 32px;border-top:1px solid #14223D;
}
footer.site .row{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
@media (max-width:760px){footer.site .row{grid-template-columns:1fr 1fr}}
footer.site h5{color:#fff;font-size:13px;letter-spacing:1.4px;text-transform:uppercase;margin:0 0 14px}
footer.site a{display:block;color:#9FACC4;font-size:14px;padding:4px 0}
footer.site a:hover{color:#fff}
footer.site .legal{
  margin-top:32px;padding-top:18px;border-top:1px solid #14223D;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:12.5px;color:#7B8AA3;
}

/* small tag */
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.tag{display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:1px;text-transform:uppercase;
  background:rgba(74,122,255,.1);color:var(--accent-2);padding:4px 9px;border-radius:6px}

/* page header (for inner pages) */
.page-head{
  background:var(--ink);color:#fff;padding:80px 0 64px;
  background-image:radial-gradient(900px 360px at 100% 0%, rgba(74,122,255,.22), transparent 60%);
}
.page-head h1{font-size:clamp(34px,4.4vw,52px);max-width:18ch}
.page-head .lede{color:#B8C2D2;font-size:19px;max-width:62ch;margin-top:8px}

/* utility */
.spacer-sm{height:24px} .spacer{height:48px}
.center{text-align:center}
.muted{color:var(--muted)}
.divider{height:1px;background:var(--border);margin:24px 0}
hr.dark{border:0;height:1px;background:#1B2A47}